Journal article
Light-induced structural changes in Eu-doped (Pb, La) (Zr, Ti)O-3 ceramics
Applied physics letters, Vol.98(17), pp.171906-171906-3
04/25/2011
Abstract
Fluorescence spectra of poled and unpoled Eu-doped (Pb, La) (Zr, Ti)O-3 ceramics with various compositions were measured using 580 nm excitation. The ratio of the intensities of the Eu3+ D-5(0) -> F-7(2)/D-5(0) -> F-7(1) fluorescence transitions was used as an indicator for the symmetry of the Eu3+ site. As the symmetry decreases, the ratio increases. Increasing the Zr content in (Pb, La) X (Zr, Ti)O-3 increases the ratio, indicating that the symmetry of the Eu3+ site decreases. Exposure of the Eu-doped (Pb, La) (Zr, Ti)O-3 samples to UV light also increases the intensity ratio, indicating that UV light exposure leads to structural distortions in Eu- doped (Pb, La) (Zr, Ti)O-3 samples, lowering the Eu3+ site symmetry. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3584136]
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Details
- Title
- Light-induced structural changes in Eu-doped (Pb, La) (Zr, Ti)O-3 ceramics
- Creators
- Thandar Myint - Washington State UniversityRay Gunawidjaja - Washington State UniversityHergen Eilers - Washington State Univ, Inst Shock Phys, Appl Sci Lab, Spokane, WA 99210 USA
- Publication Details
- Applied physics letters, Vol.98(17), pp.171906-171906-3
- Academic Unit
- Institute for Shock Physics
- Publisher
- Amer Inst Physics
- Number of pages
- 3
- Grant note
- N00014-04-1-0688; N00014-06-1-0315 / ONR; Office of Naval Research
- Identifiers
- 99900876139001842
- Language
- English
- Resource Type
- Journal article